Dan selected a random sample of 100 students from the 1,200 at his school to investigate preferences for making up school days lost due to emergency closings. The results are shown in the table. Dan incorrectly performed a large sample test of the difference in two proportions using 58/100 and 42/100 and calculated a p-value of 0.02. Consequently, he concluded that there was a significant difference in preference for the two options. Which of the following best describes his error in the analysis of these data?
A. No statistical test was necessary because 0.58 is clearly larger than 0.42.
B. The results of the test were invalid because less than 10% of the population was sampled.
C. Dan performed a two-tailed test and should have performed a one-tailed test.
D. A one-sample test for a proportion should have been performed because only one sample was used.
E. More options should have been included, and a chi-square test should have been performed.

Answer:

Subjective probability

I hope this works(Please mark me as brainliest if I gave the best answer)

Answer:

2x - 12 + 6 = 4x - 4

2x- 6 = 4x - 4

-6 +4 = 4x - 2x

-2 = 2x

x= -2/2

x = -1

Answer

2(x-6)+6=4x-4

2x-12+6=4x-4

2x-12+6-4x+4

-2x-2

-2x= 2

x=-1

Answer:

It's 15 questions that carry 4 points

Hey there mate :)

Please check the attached image for answer.

Try this option:

1) the rule 1: if f(x)=u(x)*v(x), then f'(x)=u'(x)*v(x)+u(x)*v'(x), where u(x)=x³, v(x)=ln(cos²x);

2) the rule 2: if f(x)=u(v(x)), then f'(x)=u'(v(x))*v'(x), where u(v(x))=ln(cos²x), v(x)=cos²x;

3) according to the rules above:

f'(x)=(x³)'*ln(cos²x)+x³*(ln(cos²x))';

[tex]f`(x)=3x^2ln(cos^2x)+x^3*\frac{1}{cos^2x}*(-2sinxcosx)=3x^2ln(cos^2x)-2x^3tanx.[/tex]

Answer: 3x²ln(cos²x)-2x³tanx.

Answer:

30

Step-by-step explanation:

To find the midway point, you simply do add Negative Fourty and Hundred then divide by two.

Step 1:

-40 + 100 = 60

Step 2:

60/2 = 30

Hi!

In the screenshot provided, the first graph has a positive slope, but in the second graph, the slope is negative.

Here's why:

When trying to find out if the slope is positive or negative, you look to see which direction the line in pointing.

In this case, in graph one, the line is going up so this means that the slope is positive. In graph two, the line is going down, so this means that the slope is negative.

I hope this helps!

Feel free to give brainliest!

Answer:

we know,

area of circle = πr²

area of semicircle of circle having diameter of 16.

according to formula = πr²

radius = 16/2 = 8 cm

22/7 × (8)² → 22/7 × 64 → 1408/7 = 201.14/2 = 100.57 cm (approx.)

area of semicircle of circle having diameter of 20 cm.

22/7 × 20² = 22/7 × 400 = 8800/7 = 1257.14/2 = 628.57

to get the area of shaded part 628.57 - 100.57 = 528 cm² (approx.)

hope this helps you!

Answer:

Slope is 2 and y- intercept is -5 so y = 2x -5

Answer:

72

Step-by-step explanation:

Answer:

what does it say young buck

Answer:

1/6

Step-by-step explanation:

When the y is isolated on one side and is not multiplied by anything (other than one), the slope is the value before the x. In this case, it's 1/6. And in if y is perfectly isolated, then the y-intercept is the value after the x, which is positive 3/2 in this case.

Answer:

Step-by-step explanation:

Answer:

The same shape but aren't always the size. Corresponding angles must be congruent. Corresponding sides are proportional.

Step-by-step explanation:

Answer:

1. 3750 millimetres

,,...

Answer:

1)A centimetre (international spelling) or centimeter (American spelling) (SI symbol cm) is a unit of length in the metric system, equal to one hundredth of a metre, centi being the SI prefix for a factor of 1100.

2)1000 ml

We know that 1 litre = 1000 ml, hence, the conversion factor that is used to convert liters to millilters is 1000.

3)My Solution:

Empty the 3-liter bowl, and then transfer the 2 liters from the 5-liter bowl into it. Now fill the 5-liter bowl again, then pour water carefully from the 5-liter bowl into the 3-liter bowl until it is full - exactly one more liter. The 5-liter bowl now has exactly 4 liters.

Using factorization method;

x²+13x+40=0

x²+13+40

Find two numbers that you can add together to give the co-efficient of variable x. (I.e 13 for this question). Also, you'll find two numbers that you can multiply with each other to give you the whole number as an answer. (I.e 40 in this question). The two numbers must be the same (i.e the two numbers that will be added to give the co-efficient of x and the two numbers that will be multiplied to give the whole number must be the same two).

The two numbers are +5 and +8

The equation will therefore be = x²+5x+8x+40

You'll then factorize (I.e use a common factor of both values to bracket them)

x(x+5)+8(x+5)

(x+8)(x+5)

x is therefore (x+8=0) or (x+5=0)

x=(x=0-8) or (x=0-5)

x= -8 or x= -5

Answer:

60 is answers of your question

Answer:

Eric drove 28 7/11 miles with 1 gallon of gas.

Step-by-step explanation:

You just use long division and do 315 divided by 11, and you should get 28R7 so you just turn that R7 into 7/11.

Have a nice rest of your day :)

Answer:

-1

Step-by-step explanation:

You can do this two ways, the easiest way is to look at the graph.

What is g(4) means: When the x value equals 4, what does y equal?

Look for the coordinate with the x-value of 4 (it's asking for g(4). Now if you look at the y-value of the coordinate, it should tell you what g(4) is. So since the coordinate is (4,-1), g(4) is -1.

Another way to do it is to plug in 4 for x in the equation. So...

g(4) = -[f(4) - 3)]

g(4) = -[4 - 3]

g(4) = -[1]

g(4) = -1

Answer:

A plant receiving water from precipitation is an interaction between the biosphere and the hydrosphere.

Answer:

x = 59

Step-by-step explanation:

Since the angles of a quadrilateral add up to 360°, simply set the sum of all the angles to 360°:

x + x + (2x + 3) + (2x + 3) = 360

Combine like terms:

2x + 4x + 6 = 360

6x + 6 = 360

Get the x's on one side:

6x = 360 - 6

6x = 354

Solve by dividing by 6:

x = 59

Answer:

59

Step-by-step explanation:

x + x + (2x + 3)° + (2x + 3)° = 360°

6x + 6 = 360

6x = 354

x = 59

Answer:

the second one

Step-by-step explanation:

Step-by-step explanation:

[tex]a^{ \frac{4}{5} } . \sqrt{a {}^{21} } = a^{n} \\ {a}^{ \frac{4}{5} } . {a}^{ \frac{21}{2} } = {a}^{n} \\ {a}^{ \frac{113}{10} } = {a}^{n} \\ n \: = \frac{113}{10} [/tex]

The first mistake Bailey made was in the reason he gave for the first statement. he should have written: reflexive property.

The reflexive property of congruence states that an angle will always be equal or congruent to itself.

For example, given an angle, ∠B, therefore:

∠B ≅ ∠B

In the diagram given, based on the reflexive property of congruence, ∠F ≅ ∠F.

Therefore, the first mistake Bailey made was in the reason he gave for the first statement. he should have written: reflexive property.

Learn more about reflexive property of congruence on:

https://brainly.com/question/1527538

Answer:

D. bailey did not match the corresponding bla bla bla. correct answer on khan, and screenshot proof below.

Step-by-step explanation:

Answer:

Step-by-step explanation:

This is a Pythagorean Theorem Question

c^2 = a^2 + b^2

c= sqrt(5)

a = x

b = x            This is an isosceles right triangle. The vertical side and the horizontal side are equal.

x^2 + x^2  =  sqrt(5)^2

2x^2 = 5                           Divide both sides by 2

x^2 = 5/2                          Take the sqrt of both sides.

√x^2 = √5 / √2                Multiply right side by √2 on both top and bottom

x = √5*√2 / √2*√2

x = √10 /2

Answer:

Area=(x+3)(x-1)

Ara=(x^2)-x+3x-3

Area=(X^2)+2X-3